Electrocoagulation of cutting oil emulsions using aluminium plate electrodes

Bensadok, K.; Benammar, S.; Lapicque, François; Nezzal, G.

doi:10.1016/j.jhazmat.2007.06.121

Cited by 207 publications

(114 citation statements)

References 27 publications

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“…removal of turbidity and/or of COD) vs. q/m plots appear to be independent on contaminant concentration. From such a plot, one can determine the threshold value of charge needed to accomplish the coagulation for any contaminant concentration [10].…”

Section: Group a Electrocoagulation Experiments Experiments A1: The Bmentioning

confidence: 99%

“…Since the measurement method of Bensadok et al [10] in a re-circulated system is somewhat complicated, we describe a simple procedure to determine the threshold value of specific charge. It is based on an old method, used in the industry as "conventional jar test" [11] in which the result of the effectivity of coagulation is checked through the measurement of the remaining concentration of the colloidal components in the supernatant phase of the flocculated and settled sample ("settled turbidity").…”

Section: Group a Electrocoagulation Experiments Experiments A1: The Bmentioning

confidence: 99%

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Electrochemical dissolution of aluminium in electrocoagulation experiments

Fekete

Lengyel

Cserfalvi

et al. 2016

J Solid State Electrochem

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Six experiments are presented to highlight important features of aluminium dissolution when used in electrocoagulation procedure employed to remove oily contaminations from water. First, using a common oil-in-water emulsion: diluted milk, we show that the electrochemically generated coagulant ions are active only in the first few seconds following their generation -hence the electrocoagulation cells' construction should promote the mixing of the nascent Al colloid with the water phase. For this reason the use of the narrow-gap cells is suggested. Second, in experiments with Al-Al electrode pairs and dilute, neutral, unbuffered, aqueous solutions we (i) estimate the maximum amount of Al dissolution on the cathode, and (ii) show how the rate of Al dissolution changes with frequency if the cell voltage polarity is alternating.

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Section: Group a Electrocoagulation Experiments Experiments A1: The Bmentioning

confidence: 99%

Section: Group a Electrocoagulation Experiments Experiments A1: The Bmentioning

confidence: 99%

Electrochemical dissolution of aluminium in electrocoagulation experiments

Fekete

Lengyel

Cserfalvi

et al. 2016

J Solid State Electrochem

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“…The appropriate pH range for effluent discharge is 5.5 -9. Furthermore, the increased solubility of Al(OH) 3 in alkaline solutions may lead to increased Al concentration in the treated electrocoagulation effluent above the environmental standards [36]. Therefore, it is better to carry out the electrocoagulation process in this appropriate pH range.…”

Section: Initial Phmentioning

confidence: 99%

Nickel removal from waste water by electrocoagulation with aluminum electrodes

Dermentzis¹,

Valsamidou²,

Lazaridou³

et al. 2011

JESTR

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In this study, the performance of electrocoagulation with aluminium electrodes for removing nickel from synthetic aqueous solutions and actual electroplating wastewater was investigated. Parameters affecting the electrocoagulation process, such as initial pH, current density, initial metal ion concentration and contact time were investigated. The removal efficiency is very high in the pH range 4-10. Increased current density accelerated the electrocoagulation process, however, on cost of increased energy consumption. Initial Ni 2+ concentrations of 100-300 mg/lit were quantitatively reduced under the admissible limits in only 10-20 minutes of electrolysis time respectively at the current density of 30 mA/cm 2 . The process has proved to be efficient in removing Ni 2+ ions also from industrial electroplating effluents, where an initial Ni 2+ concentration of 215 mg/lit fell under the legal limits in 20 minutes.

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“…It was reported that electrocoagulation process has been widely applied to treat wastewater such as cutting oil emulsion wastewater [4] and textile wastewater [5]. In addition, researchers claimed that electrocoagulation process also successfully removed heavy metals from wastewater such as mercury (III) [6], phosphate [7,8], arsenic [9], fluoride [10] and antimony [11].…”

Section: Introductionmentioning

confidence: 99%

Potential of Copper Electrodes in Electrocoagulation Process for Glyphosate Herbicide Removal

2017

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Abstract. Herbicide has been widely used since it was first marketed. Consumption of water contains glyphosate herbicide can bring adverse effects to human health. This study was intended to evaluate the performance of electrocoagulation process using copper electrodes for glyphosate removal in aqueous solution. Synthetic glyphosate powder has been diluted in deionized water. An electrocoagulation tank of 500 mL with two copper plates electrodes, same in dimensions were setup. The effects of continuous variables of initial glyphosate concentration, electrocoagulation time and current density, were discussed in detail. Production of copper cations showed an ability to neutralize negatively charged particles, then, encouraged to bind together to form aggregates of flocs composed of a combination of glyphosate and copper hydroxide. This study revealed that electrocoagulation process using copper electrodes is reliable by indicating 46.69% glyphosate removal. Finally, it can be concluded that electrocoagulation process using copper electrodes is efficient for glyphosate removal from aqueous environments.

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Electrocoagulation of cutting oil emulsions using aluminium plate electrodes

Cited by 207 publications

References 27 publications

Electrochemical dissolution of aluminium in electrocoagulation experiments

Electrochemical dissolution of aluminium in electrocoagulation experiments

Nickel removal from waste water by electrocoagulation with aluminum electrodes

Potential of Copper Electrodes in Electrocoagulation Process for Glyphosate Herbicide Removal

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